<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
    
        .one {
            border: 1px green solid;
            width: 500px;
            height: 200px;
            /* padding: 20px; */
            margin: 0 auto;
        }
        .two {
            border: 1px blue solid;
            width: 100px;
            height: 50px;
            margin: 10px 20px 30px 40px;
        }
    </style>
</head>
<body>
    <div class="one">
        <div class="two">div444</div>
        <div class="two">div555</div>
    </div>
    <div class="one">div222</div>
    <div class="one">div333</div>
</body>
</html>